This document discusses defining the concept of a virtual tourist community and its implications for tourism marketing. It begins by exploring different perspectives on defining virtual communities and identifying some core characteristics, such as shared interests/goals, repeated interactions, shared resources/policies, and reciprocity among members. The document then examines definitions from multidisciplinary, sociological, and technological viewpoints. It provides a working definition of a virtual community as consisting of people interacting to satisfy needs/roles, a shared purpose, community policies, and computer systems to support interactions. The document concludes by discussing implications for understanding virtual communities in the travel industry from marketing and design perspectives.